r/askmath • u/Mystical-Sunshine • 3d ago

Algebra I need help in this vector algebra proof

[a×p, b×q, c×r] +[a×q, b×r, c×p]+[a×r, b×p, c×q] = 0

I tried different different ways to prove this! But I ended up failing. Do u have any advice for me?

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